
[英]Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured. SPRING
[英]'Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.' error in springboot application
我创建了一个 springboot 应用程序,它使用 Spring Boot 和 Apache Camel JDBC 组件在 postgreSQL 中插入记录。 为此,我使用以下依赖项:
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-dbcp2</artifactId>
<version>2.9.0</version>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-jdbc</artifactId>
<version>${camel.version}</version>
<!-- use the same version as your Camel core version -->
</dependency>
至于数据库配置,我使用 application.properties 文件创建了以下 java 类:
数据库配置java类:
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Properties;
import org.apache.camel.support.SimpleRegistry;
import org.apache.commons.dbcp2.BasicDataSource;
public class DatabaseConfiguration {
public static SimpleRegistry createDatabaseConfiguration() throws IOException {
Properties properties = new Properties();
properties.load(new FileInputStream("src/main/resources/application.properties"));
BasicDataSource basic = new BasicDataSource();
basic.setDriverClassName(properties.getProperty("PostgresDBClassname"));
basic.setUsername(properties.getProperty("PostgresDBUsername"));
basic.setPassword(properties.getProperty("PostgresDBPassword"));
basic.setUrl(properties.getProperty("PostgresDBUrl"));
SimpleRegistry registry = new SimpleRegistry();
registry.bind("myDataSource", basic);
return registry;
}
}
application.properties 文件:
PostgresDBUsername = username
PostgresDBPassword = password
PostgresDBClassname = org.postgresql.Driver
PostgresDBUrl = jdbc:postgresql://localhost:5432/postgres
我用以下方式编写了路由器,注意到我试图用 myDataSource 替换 dataSource:
@Component
public class InsertRestService extends RouteBuilder {
@Override
public void configure() throws Exception {
rest("/").produces("text/plain")
.get("insert")
.to("direct:hello");
from("direct:hello")
.transform().simple("INSERT INTO person (name, country) VALUES (DANY, LB)")
.to("jdbc:dataSource") //spring boot starter jdbc creates the bean in the registry
.transform().simple("Data inserted in Postgres successfully");
}
}
我收到以下错误:
Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.
Reason: Failed to determine a suitable driver class
我在 application.properties 文件 PostgresDBUrl 中提供了 URL
另外注意我下载了jdbc驱动jar文件并添加到模块路径中,右键包后,构建路径,配置构建路径 那么我能做些什么来解决这个问题呢? 谢谢!!
我删除了配置文件 (DatabaseConfiguration) 并将 application.properties 文件的内容替换为:
spring.datasource.url=jdbc:postgresql://localhost:5432/test
spring.datasource.username=username
spring.datasource.password=password
spring.datasource.platform=postgres
spring.jpa.hibernate.ddl-auto=none
它奏效了!
检查您的 pom.xml 文件并将其打包转换为war 。 它对我有用。
<packaging>war</packaging>
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